I know you can make the gown. We quilters enjoy a real challenge. If I can, so can you.
I have made three for greatgrands. One thing I suggest you do as this gown will be an heirloom. Make a slip or petticoat and add a 1" hem before you add the lace to the hem. I did this and the baby's full name and DOB were written with the pigma pen on the inside. The gown stays with my grandsons or granddaughter to be kept for future baptisms and additional names can be added to the hem with each baptism and keep a history of each baby who wore the gown at baptism.
One more thing. Using a double needle, make rows and rows of pintucks which are easy and look great. Just make the first row straight and then just butt the next row against the first. Good luck and be sure to show us photos (with baby, of course), when you are done. We are all cheering you on.